/**
 * 
 */
import java.util.*;
/**
 * 
 * @author Fernando Riffo
 *
 */
public class Ejercicio2 {
	/**
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		int Juan = 0, Maria = 0, x, n, i;
        Scanner in = new Scanner(System.in);
        while ((n = in.nextInt()) > 0) {
            Juan = 0;
            Maria = 0;
            for (i = 0; i < n; i++) {
                x = in.nextInt();
                if ((x & 1) == 1) {
                    Maria++;
                }
            }
            for (i = 0; i < n; i++) {
                x = in.nextInt();
                if ((x & 1) == 0) {
                    Juan++;
                }
            } 
        }
        if (Juan > Maria) 
            System.out.println(Juan - Maria);
        else 
            System.out.println(Maria - Juan);
        
    }
}
